111 of 119 people found the following review helpful
It acually worked.,
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This review is from: Liftmaster 375LM Remote Clicker Universal Remote (Tools & Home Improvement)
Being down to our last remote for our old garage opener, I was beginning to wonder how to get another remote. I got this just for fun, I didn't think it would work, but it was inexpensive enough to try out.
After reading the instructions, I was now absolutely positive it would not work. You have set dip switches (open your current remote and set it to the same dip switch pattern), and press the remote button a certain number of times (in my case 17 times). So here I am, pressing the button 17 times, thinking how stupid this is, but on the 17th press, amazingly the door opened. Of course, after you do this, you only have the press the button once to get it to work, but there seems to be a delay as it runs through your programming again.
Here is the instructions from LiftMaster: